System coupling of agro-grassland ecosystems to maximise eco- economic benefits -some examples from Northwestern China
文献类型： 会议论文
第一作者： REN Jizhou
作者： REN Jizhou 1 ; LIN Huilong; Chinese Society for Grassland Science; Lanzhou University; Gansu Grassland Ecological Research Institute(GGERI)(CN);;
作者机构： 1.College of Pastoral Agriculture Science and Technology and Gansu Grassland Ecological Research Institute, Lanzhou University, Lanzhou 730000, Gansu, China
会议名称： Acta Prataculturae Sinica vol.15 Suppl. July 2006:Grassland Agriculture:Balancing Production and Environmental Protection
主办单位：
页码： 264-268
摘要： There are four production levels in the Agro-Grassland ecosystem: a) Pro-plant production level, such as natural reserves, genetic pools, soil and water conservation, and recreation areas. It offers a landscape for scientific and aesthetics values; b) Plant production level; c) Animal production level d) post-biological production level (manufacturing and trading activities for agricultural products). According to this basic structure, we can realize that agro-grassland ecosystems are multi-level and technique-intensive systems (Ren, 2004; Ren et al, 2005). The system coupling may be an effective way to increase the economic and ecological profits.
分类号： S812
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